Lac
/LAC/
Joy, happiness, from Vietnamese lạc. A bright virtue-name borne by Saint Andrew Dũng-Lạc and taken up across Vietnamese Catholic families who honour the native martyrs, pairing simple gladness with the memory of those who died for their faith.
Get Lac's full report — patron saint, feast day & a portrait — freeQuick — what every Christian parent asks about Lac:
How well does Lac fit your family?
This page tells you what Lac means. The app tells you whether it's right for your baby — scored against your family & your heritage, and your baby's birth details.
Unlock Lac's score — free
Six signals — scored for your family & heritage, not in the abstract:
Meaning & origin
Yes — Lac is a Christian boy name of Vietnamese origin, meaning “Joy, happiness, from Vietnamese lạc. A bright virtue-name borne by Saint Andrew Dũng-Lạc and taken up across Vietnamese Catholic families who honour the native martyrs, pairing simple gladness with the memory of those who died for their faith.”.
Lac is a boy's name of Vietnamese origin, traditionally used in Christian families. The name means "Joy, happiness, from Vietnamese lạc. A bright virtue-name borne by Saint Andrew Dũng-Lạc and taken up across Vietnamese Catholic families who honour the native martyrs, pairing simple gladness with the memory of those who died for their faith." and belongs to the Joy cluster — names that celebrate happiness and lightness of spirit.
Common among Vietnamese, SoutheastAsian, American families, Lac carries cultural weight that goes beyond its dictionary definition — it's a name with a story and a community.
The patron saint & feast day behind Lac
Many Christian names carry a patron saint and a feast day (name day) — a tradition of choosing a name for the saint a child is born near, or one the family holds dear. Lac lives in this tradition of meaning and heritage.
NameRoot connects the dots. See Lac's patron saint, its feast day, and whether it aligns with your baby's birth — alongside its full family score.
See Lac's saint & feast day →What does Lac's numerology say?
Numerology assigns each name a single-digit destiny number by summing its letter values. Different schools use different mappings — NameRoot computes both so you can see how Lac resonates in either tradition.
Lac's destiny number is 7 — but a number only matters in context. The app matches it to your family's own numbers for a real compatibility read. See Lac's full reading →
Does Lac go with your family's names?
Lac breaks into 1 sound: /LAC/. The real test isn't how it sounds alone — it's how it sounds beside the names already in your family: yours, your partner's, and any brothers or sisters. NameRoot scores that harmony, so Lac sits naturally next to a Mum and Dad like Michael & Anna, or a big sister named Gianna — no awkward clashes, no two names that blur together. Hear Lac beside your family's names →
Names similar to Lac
If Lac resonates with you, these names live in the same world — drawn from the same tradition, sharing the same meaning, or echoing a similar sound.
From the same tradition
Other Christian boy names, common in Vietnamese families
Sharing the same meaning
Other Christian boy names from the Joy cluster
Explore more names
Keep exploring names like Lac — by tradition, by meaning, or by first letter.
Common questions about Lac
What does the name Lac mean?
Lac means "Joy, happiness, from Vietnamese lạc. A bright virtue-name borne by Saint Andrew Dũng-Lạc and taken up across Vietnamese Catholic families who honour the native martyrs, pairing simple gladness with the memory of those who died for their faith.." It is a boy name of Vietnamese origin, traditionally used in Christian families.
Is Lac a boy or girl name?
Lac is most commonly used as a boy name.
What is the origin of the name Lac?
Lac is of Vietnamese origin, used in Christian tradition, commonly among Vietnamese, SoutheastAsian, American families.
Is Lac a Christian name?
Yes. Lac is a boy name traditionally used in Christian families, of Vietnamese origin.
What does Lac mean in Vietnamese?
Lac originates from Vietnamese, where it means "Joy, happiness, from Vietnamese lạc. A bright virtue-name borne by Saint Andrew Dũng-Lạc and taken up across Vietnamese Catholic families who honour the native martyrs, pairing simple gladness with the memory of those who died for their faith.."
What is the numerology of Lac?
Lac has a Pythagorean destiny number of 7 — introspection and spiritual wisdom.
See how Lac scores for your family
NameRoot is the only baby-name app that scores every name across 6 signals against your specific family context. Download free — Lac is waiting.
Get NameRoot — free